As per design.
The Westminster Bubble has perfected the Uniparty to a degree that makes Washington D.C. green with envy. Reform was infiltrated and sabotaged in record time, ensuring that they won't be any sort of threat by the time Starmer finally collapses and a new election is triggered.
Come election you will see them do basically what France did but on a much bigger scale: Candidates will straight up refuse to run in places to guarantee that all the votes will go towards the most likely to win non-Nativist candidate. Reform's candidates will snatch defeat from the jaws of victory by pretending it is still 2016, falling for weak bait, apologizing for racism and disavowing themselves. The few non-Reform right wingers? They might just be straight up arrested or barred from running by bullshit excuses.
Farage will gleefully campaign to win the PM seat, and will chose the exact wrong choice every time. He will be "racist" enough to turn off the indoctrinated NPCs and provide cheap propaganda for the BBC while at the same time refusing to commit to the actual hard right that would support him.
It will end up being a farce of a election where nothing will change and the country will continue on the same Blairite path it has been going. Things won't change over there until the ground is literally collapsing under the feet of the political establishment, and even then some will let themselves be swallowed by the earth rather than admit times changed.
Honestly at this point it is looking like it will be harder to get these people to change their fucking minds than it was for the USSR to collapse.